html {
    background-color: rgb(244, 244, 244);
}
.App {
    margin: 24px auto;
    border-radius: 5px;
    text-align: center;
    font-family: '等距更纱黑体 SC', 'JetBrains Mono', -apple-system,
        BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell,
        'Open Sans', 'Helvetica Neue', sans-serif;
    padding: 0 24px;
    font-size: 16px;

    overflow: hidden;
    -webkit-border-radius: 5px;
    -moz-border-radius: 5px;
    -ms-border-radius: 5px;
    -o-border-radius: 5px;
}
input[type='text'] {
    color: inherit;
    font: inherit;
    font-weight: 600;
    text-align: center;
    border: none;
    border-bottom: 2px solid #555;
    padding: 8px 16px;
    background-color: rgb(244, 244, 244);
    outline: none;
}
input[type='text']:focus {
    border-color: rgb(104, 123, 226);
}
button {
    color: inherit;
    font: inherit;
    font-weight: 600;
    cursor: pointer;
    padding: 8px 16px;
    border-radius: 2px;
    -webkit-border-radius: 2px;
    -moz-border-radius: 2px;
    -ms-border-radius: 2px;
    -o-border-radius: 2px;
    border: 2px solid rgb(244, 244, 244);
    background-color: rgb(244, 244, 244);
    box-shadow: -3px -3px 5px #fff, 3px 3px 5px #aaa;
}
button:active {
    box-shadow: -3px -3px 5px #fff, 3px 3px 5px #aaa, inset -3px -3px 5px #fff,
        inset 3px 3px 5px #aaa;
}
.graphic-area {
    position: relative;
    display: flex;
    padding: 12px;
    align-items: center;
    background-color: #fff;
    border: 1px solid #aaa;
}
.hanoi-pillar {
    flex: 1;
    display: flex;
    padding: 24px 0;
}
.game-start {
    padding: 8px 24px;
    font-size: 16px;
    font-weight: 600;
    font-style: italic;
}
.game-name {
    margin: 0;
}
.game-rule__title {
    margin: 12px 0;
    color: rgba(51, 102, 153, 0.767);
    font-style: italic;
}
.game-panel {
    position: absolute;
    right: -4px;
    top: -4px;
    padding: 8px 0;
    width: 300px;
    background-color: rgb(244, 244, 244);
    border-radius: 2px 2px 2px 15px;
    border: 1px solid #aaa;
}
.game-guide,
.game-steps {
    margin: 0;
}
.game-steps {
    color: rgb(172, 20, 20);
    font-weight: 600;
    font-size: 20px;
}
.game-guide {
    color: rgba(97, 68, 74, 0.795);
    font-size: 14px;
    font-style: italic;
}
